Bloomberg has data on more than 5 million bonds, equities, commodities, currencies & funds. It covers most every publicly traded company in the world, and has profiles on more than a million people. To boot, it has a rather unusual keyboard...
< Red keys > -- used to login or logout of the system. Login instructions should be available at the terminal you are using. You cannot use the login for one terminal at a different terminal.
Regular keys -- used to enter tickers, function codes, search terms, date ranges, et cetera.
< Yellow market keys > -- used to tell Bloomberg in what market you want to look for the data.
< Green keys > -- used to make Bloomberg actually do something. You can type in the ticker for a security and hit the correct market key, but if you do not hit the green < GO > button Bloomberg will not do anything.
Typically when using Bloomberg, your command might look something like this: TICKER < MARKET > FUNCTION CODE < GO >